Carbon quantum dots with green fluorescence as a probe for detecting uric acid

Green-fluorescent nitrogen-doped carbon quantum dots (g-CQDs) were synthesized via a simple and convenient one-step hydrothermal method using Passiflora edulis sims shell as a carbon source and m-phenylenediamine as a nitrogen source and applied to the detection of uric acid. Unlike most reported bl...

Full description

Saved in:
Bibliographic Details
Published inChemical papers Vol. 76; no. 6; pp. 3627 - 3638
Main Authors Li, Guo-Wei, Lan, Yu-wei, Peng, Yi-qin, Bao, Wen-bin, Zhou, Li-ya
Format Journal Article
LanguageEnglish
Published Warsaw Versita 01.06.2022
Springer Nature B.V
Subjects
Biochemistry
Biotechnology
Carbon
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Fluorescent indicators
Industrial Chemistry/Chemical Engineering
Materials Science
Medicinal Chemistry
Nitrogen
Original Paper
Phenylenediamine
Quantum dots
Selectivity
Ultraviolet radiation
Uric acid
Carbon quantum dots
Green fluorescence
Uric acid
Static quenching
Online AccessGet full text

Cover

More Information
Summary:Green-fluorescent nitrogen-doped carbon quantum dots (g-CQDs) were synthesized via a simple and convenient one-step hydrothermal method using Passiflora edulis sims shell as a carbon source and m-phenylenediamine as a nitrogen source and applied to the detection of uric acid. Unlike most reported blue fluorescent probes, the obtained g-CQDs showed bright-green fluorescence under ultraviolet light with a high quantum yield of 37.6%. Moreover, the g-CQDs exhibit outstanding photostability and high sensitivity, an excellent linearity ranging from 1 to 17 µM, and a great limit of detection of 0.94 µM, which renders them suitable for the determination of uric acid in human urine with remarkable selectivity.
ISSN:0366-6352
1336-9075
2585-7290
DOI:10.1007/s11696-022-02071-w